Amazon polly is a amazon server based audio converter. I need to convert the book chapter into audio format using amazon polly. Polly allows only 1500 character to be entered in a single time. So you need to divide the text to small parts and then convert into mp3 and at last fuse all the mp3 of a particular chapter into a single mp3. No need to convert the references of the chapter into mp3. Totally there are around 50 chapter in the book with 20 pages per chapter.